Ind. Code § 35-47-7-1

Sec. 1. Every case of a bullet wound, gunshot wound, powder burn, or any other injury arising from or caused by the discharge of a firearm, and every case of a wound which is likely to or may result in death and is actually or apparently inflicted by a knife, ice pick, or other sharp or pointed instrument, shall be reported at once to the law enforcement authorities of the county, city, or town in which the person reporting is located by either the physician attending or treating the case, or by the manager, superintendent, or other person in charge if the case is treated in a hospital, clinic, sanitarium, or other facility or institution. A person who violates this section commits a Class C infraction.